Device for drawing off gaseous and liquid media

Abstract

A device for drawing off gaseous and liquid media from an inflowing medium, in particular in a tank ventilation system, has the following features: a housing, a feed connection for introducing the inflowing medium into the housing, an outlet connection for drawing off the liquid medium at the lower side of the housing, an outlet connection for drawing off the gaseous medium at the upper side of the housing, a float chamber which is arranged between the outlet connections, a floating body which is arranged in the float chamber in a manner which allows it to be displaced in the longitudinal direction of the float chamber, a closing device for closing the float chamber with respect to the outlet connection for the liquid medium, a closing device for closing the float chamber with respect to the outlet connection for the gaseous medium, and a deflecting device for deflecting a longitudinal movement of the floating body within the float chamber into an opposite direction and for transmitting the said longitudinal movement to a tappet-shaped element for the purpose of opening the closing device of the float chamber with respect to the outlet connection for liquid media.

What is claimed is:  
     
       1. A device for drawing off gaseous and liquid media from an inflowing medium, in particular in a tank ventilation system, said device comprising: 
       a housing ( 2 ) having an upper side ( 7 ) and a lower side ( 5 ),  
       a feed connection ( 3 ) for introducing the inflowing medium into the housing ( 2 ),  
       a first outlet connection ( 4 ) for drawing off the liquid medium at the lower side ( 5 ) of the housing ( 2 ),  
       a second outlet connection ( 6 ) for drawing off the gaseous medium at the upper side ( 7 ) of the housing ( 2 ),  
       a float chamber ( 8 ) which is arranged between the first and second outlet connections ( 4 ,  6 ),  
       a floating body ( 9 ) which is arranged in the float chamber ( 8 ) in a manner which allows it to be displaced in the longitudinal direction of the float chamber ( 8 ),  
       a first closing device ( 24 ) for closing the float chamber ( 8 ) with respect to the first outlet connection ( 4 ) for the liquid medium,  
       a second closing device ( 13 ) for closing the float chamber ( 8 ) with respect to the second outlet connection ( 6 ) for the gaseous medium, and  
       a deflecting device ( 19 ) for deflecting a longitudinal movement of the floating body ( 9 ) within the float chamber ( 8 ) into an opposite direction and for transmitting the said longitudinal movement to a tappet-shaped element ( 20 ) for the purpose of opening the first closing device ( 24 ) of the float chamber ( 8 ) with respect to the first outlet connection ( 4 ) for liquid media.  
     
     
       2. The Device according to claim  1 , wherein the floating body ( 9 ) is of at least partially hollow design, and the deflecting device ( 19 ) is arranged within the floating body ( 9 ). 
     
     
       3. The Device according to claim  2 , wherein the tappet-shaped element ( 20 ) is guided in the lower region of the float chamber ( 8 ). 
     
     
       4. The Device according to claim  1 , wherein the deflecting device ( 19 ) comprises a toothed rack ( 21 ) which is connected to the float chamber ( 8 ) and is in engagement with a toothed wheel ( 23 ), the element ( 20 ) being provided with a toothing ( 22 ) for the purpose of opening the first closing device ( 24 ) and being in engagement with the toothed wheel ( 23 ). 
     
     
       5. The Device according to claim  1 , wherein element ( 20 ) is arranged at least approximately in the region of the longitudinal axis ( 10 ) of the floating body for the purpose of opening the first closing device ( 24 ), and wherein the deflecting device ( 19 ) comprises three outer toothed racks ( 22 ), which are arranged around the circumference of element ( 20 ), an inner toothed rack ( 21 ) connected to the float chamber ( 8 ) and three toothed wheels ( 23 ), which are in each case in engagement with an inner toothed rack ( 21 ) and the outer toothed racks ( 22 ). 
     
     
       6. The Device according to claim  1 , wherein the first closing device includes a flap ( 24 ) for closing the float chamber ( 8 ) with respect to the first outlet connection ( 4 ) for the liquid medium, said flap is held in its closed position by a spring element ( 25 ) which acts counter to the tappet-shaped element ( 20 ). 
     
     
       7. The Device according to claim  1 , wherein the first closing device ( 24 ) includes a hysteresis device ( 29 ) for closing the float chamber ( 8 ) with respect to the first outlet connection ( 4 ) for the liquid medium. 
     
     
       8. The Device according to claim  7 , wherein the hysteresis device ( 29 ) has a pressure element ( 31 ) which is pressed against a flap ( 24 ) by a spring element ( 30 ) and on its side which faces the flap ( 24 ) is of curved design, and the flap ( 24 ) being of curved design on its side which faces the pressure element ( 31 ). 
     
     
       9. The Device according to claim  1 , wherein the second closing device ( 13 ) has a truncated-cone-shaped elevation ( 15 ) formed by the float chamber ( 8 ) for the purpose of closing the float chamber ( 8 ) with respect to the second outlet connection ( 6 ) for the gaseous medium, the truncated-cone-shaped elevation ( 15 ) includes an opening ( 14 ) formed therein, the truncated-cone-shaped elevation can be closed by a mating elevation ( 16 ) on the floating body ( 9 ). 
     
     
       10. A device according to claim  9 , further comprising a spring element ( 18 ) disposed between the truncated-cone-shaped elevation ( 15 ) of the float chamber ( 8 ) and the mating elevation ( 16 ) of the floating body ( 9 ). 
     
     
       11. A device according to claim  9 , further comprising a sealing element ( 17 ) arranged on the mating elevation ( 16 ) of the floating body ( 9 ). 
     
     
       12. A device according to claim  9 , wherein said deflecting device ( 19 ) is disposed within said float chamber ( 8 ). 
     
     
       13. A device according to claim  1 , wherein the floating body ( 9 ) is supported in the float chamber ( 8 ) by radially outwardly extending guide pins ( 11 ), passages ( 28 ) being situated between the guide pins ( 11 ). 
     
     
       14. A device according to claim  1 , further comprising a directing element ( 12 ) arranged in the region of the inflowing medium of the feed connection ( 3 ) into the float chamber ( 8 ) for the purpose of distributing the flow of media into the float chamber ( 8 ). 
     
     
       15. A device for drawing off gaseous and liquid media from an inflowing medium, in particular in a tank ventilation system, said device comprising: 
       a housing ( 2 ) having an upper side ( 7 ) and a lower side ( 5 ),  
       a feed connection ( 3 ) for introducing the inflowing medium into the housing ( 2 ),  
       a first outlet connection ( 4 ) for drawing off the liquid medium from the housing ( 2 ),  
       a second outlet connection ( 6 ) for drawing off the gaseous medium from the housing ( 2 ),  
       a chamber ( 8 ) which is arranged between the first and second outlet connections ( 4 ,  6 ),  
       a body ( 9 ) which is arranged in the chamber ( 8 ) in a manner which allows it to be displaced in a first specified direction,  
       a first closing device ( 24 ) for closing the chamber ( 8 ) with respect to the first outlet connection ( 4 ) for the liquid medium,  
       a second closing device ( 13 ) for closing the chamber ( 8 ) with respect to the second outlet connection ( 6 ) for the gaseous medium, and  
       a device ( 19 ) arranged within said body for transmitting movement of the body ( 9 ) in the first specified direction into movement of an element ( 20 ) in a second specified direction to open the first closing device ( 24 ) of the float chamber ( 8 ) with respect to the first outlet connection ( 4 ) for liquid media.  
     
     
       16. The device as set forth in claim  15 , wherein said first specified direction is opposite from said second specified direction.